HardLabs

Plant133

chl33·Plant133·KiCAD/Plant1337.kicad_pcb

Plant133 PCB layout, top view — open source ESP32 board by chl33

About the Plant133 PCB

Plant133 is an open source ESP32 PCB design by chl33, published on GitHub under the MIT license. It is a 4-layer board measuring 59.2 × 41.9 mm, with 56 components from 24 distinct parts.

Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the SHTC3 and AMS1117-3.3. By type, the board carries 11 diodes, 4 transistors, 3 ICs, 2 connectors and 1 fuse.

It belongs with the iot & wireless and sensors designs in this gallery.

From the project

Firmware, circuit design, and 3D-printable components for an automated plant-watering system.

This is a full distribution of the Plant133 plant-watering device. This device can monitor and water up to 4 plants at a time. This repository hosts the firmware, PCBA design, and OpenSCAD code for all components.

A writeup about this project is at "Plant1337: "Water 4 plants."

Multi-Plant Support: Monitors and independently waters up to 4 plants. Sensors: Capacitive soil moisture sensing for each plant. SHTC3 temperature and humidity sensor for environmental monitoring. Reservoir water level float switch detection. User Interface: OLED Screen: Rotates through status screens showing IP…

Plant133, from the project README
From the project README

Main components on the Plant133

SHTC3ESP32-WROOM-32AMS1117-3.3

Plant133 bill of materials (BOM)

56 components, 24 distinct parts.

QtyPartRefs
1
SHTC3
U1
1
ESP32-WROOM-32
U2
1
AMS1117-3.3
U3
4
AO3400A
Q1, Q2, Q3, Q4
1
USB_B_Micro
J1
1
Edge2x6_Connector
J2
3
100nF
Ca1, Ca2, Ca3
2
10uF
Cb2, Cb3
1
47uF
Cc2
4
10nF
Cf1, Cf3, Cf4, Cf5
1
Fuse_Small
F1
1
Conn_01x04_Socket
JOLED1
5
Conn_01x02_Pin
JPMP1, JPMP2, JPMP3, JPMP4, JWL1
4
Conn_01x03_Pin
J_MOIS1, J_MOIS2, J_MOIS3, J_MOIS4
2
2.2k
Rf1, Rf2
6
1k
Rl1, Rl2, Rl3, Rl4, Rl5, Rl6
5
470
Rt1, Rt2, Rt3, Rt4, Rt5
1
12k
Ru1
1
10k
Ru2
1
BLU
D1
Show 4 more
QtyPartRefs
4
RED
D2, D6, D8, D10
4
1N4001
D3, D7, D9, D11
1
SS14
D4
1
YLW
D5

Plant133 design files

The KiCad project lives in the chl33/Plant133 repository on GitHub; these links point at the commit this page was built from.

Plant133: common questions

What microcontroller does the Plant133 use?

The Plant133 is built around the ESP32-WROOM-32, from the ESP32 family.

How big is the Plant133 PCB?

The Plant133 measures 59.2 × 41.9 mm, has 4 copper layers and is 2.07 mm thick.

How many components are on the Plant133?

56 components, from 24 distinct parts. The full bill of materials is listed on this page.

Where can I download the Plant133 design files?

From the chl33/Plant133 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.

Can I use the Plant133 design in my own project?

Yes, under the terms of its MIT license, which chl33 chose for the repository.

Can I test firmware for the Plant133 without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.

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